Marking steels

Why do I need marking and most importantly - what does it mean?First of all, it is caused by a code that displays the properties of the product.For each product applied to your code.Any industry (chemical, automotive, heavy, light) requires labeling or applying a barcode.

Industrial marking (for example marking of steels and alloys) helps to carry out qualitatively further work where this product will be shown later.For example, the marking of pipes would allow builders to make work properly with running water, which, in turn, lead to unexpected accidents and pipe breaks under load.

be labeled steels indelible paint.The following briefly presents the classification and labeling of steels.So ...

steel ordinary (common quality) is applied to the letter and number of the Article.It looks like St3, St2, St1, St0.Steel quality (carbon) are marked with numbers double, the number say about the content of the proportion of carbon percentage (hundredths of a): 40, 25, 10, 08 and so on. D., And the letter

T in the labeling indicates increased levels of manganese steel (18g, 14D, etc.)

Steel submachine mark the first letter of the Russian alphabet A (A30, A12, etc.).Carbon tool steel, the letter Y (U12, U10, U8, where the numbers indicate the content of steel in the 10th of a percent).

Stamps alloyed steels contain letters indicating the components that make up a particular steel, characterizing the average of their content: the nitrogen is designated as A, aluminum - have, vanadium - F, Bor - P, Mn - D, cobalt - K, silicon -C, manganese - T, Mo - M, copper - D, nickel - N, selenium - B, carbon - Y, Ti - T Chrome - X, phosphorus - P, Zr - Ts

first figures indicatecontent in the steel component called carbon in hundredths of a defined structural steels and ten - for stainless steel and tool steels.Then the letters denote the alloying element.The letter followed by numbers indicating the average content of this element in units (integer).If the content of alloying elements is less than a half percent, the figures after the relevant letters are not listed.Available at the end of the letter A indicates the high quality of steel.Letter W - special distinction quality (especially stainless steel).

Steel ordinary quality: BSt0, VSt0, St0 (color red, or green);VSt1kp, St1 (yellow), BSt3, St3, VST3kp, BSt3kp, VSt3 (red color), BSt4, St4, BSt4kp, VSt4kp, VSt4 (black) St5 and VSt5 (color green) and finally St6 (color blue).

quality carbon steel: 20, 15, 10, 08 (white color);40, 35, 30, 25 (white, yellow);60, 55, 50, 45 (white, brown).

Structural steel alloy: chrome (color green, yellow);chrome (color green, black);chrome (either green or purple);chromium-manganese (black, blue);manganese (brown or blue);hromokremnemargantsovaya (blue, red);hromoalyuminievaya (aluminum);hromonikelemolibdenovaya (purple or black).

corrosion-resistant steel: chromium-nickel (the color red or aluminum);chrome;chrome (aluminum or black), hromotitanovaya (yellow or aluminum);hromonikeletitanovaya (blue, aluminum);hromonikelekremnistaya (green, aluminum);hromomargantsenikelevaya (color aluminum or brown), hromonikeleniobievaya (white or aluminum) and hromonikelemolibdenotitanovaya steel (color purple, aluminum).

speed steel, designated as P18 (bronze or red) and P9 (bronze color).

sintered hard alloys.In such alloys bear the following markings steels: BK2 (white stripe on black);BK3-M (orange stripe on black), VK4 (orange);VK6 (blue color);VK6-B (purple);VK6 M (white line on blue);VK8 (red);VK8-B (blue stripe on red);VK15 (white);T30K4 (blue);T15K6 (green color).

Using these simple rules is fairly easy to determine the composition and properties of the steel.Designed marking in the USSR, but still in effect today in the CIS and Russia.